i got 77.07 in JEE mains 2020.general catgory qualified for advance or not

Hello Vishnu Lahre, Last year cutoff for JEE Main for different categories which is the qualification for JEE Advanced

GENERAL - 89.75

General EWS - 78.24

Other Backward Class(OBC - NCL) - 74.31

Scheduled Caste(SC) - 54.01

Scheduled Tribe (ST) - 44.33

PWD - 0.11

So, this year also Cutoff percentile will be close to last year only, it may increase or decrease by 1 to 2 percentile.
Now,if you got 77.07 percentile and you belong to General Category then according to last year trend you are not eligible for JEE Advanced.
You should try your best in April JEE Main and should try to make your percentile above 90.
Best of Luck